Proposed System Specification

System Type: Hybrid Heat Pump System

Project Reference: Thorneycroft

Contact Details: Regional Business Manager: Simon Melbourne Telephone Number: 07964123749 Email: simon.melbourne@vaillant.co.uk

Date Created: 20 November 2017

Because Vaillant thinks ahead. Dear Customer

Thank you for your request for information on a Vaillant aroTHERM 5kW Hybrid System. Below and in the appendix you will find a recommended aroTHERM 5kW system and material list. The system is based on information you have supplied.

Estimated Space Heating and DHW requirements

Based on the information supplied we can estimate

- The peak heat loss from the property is 7.47kW at an outside temperature of -3.4°C.
- The Calculated Bi Valant point is 0°C, beyond this outside temperature the heat loss of the property will require the boiler and heat pump to operate.
- The annual heating requirement is 19237kWh/year.
- And that an addition 3821kWh/year will be required for DHW.

Thus making the total energy demand 23058 kWh/year.

Proposed aroTHERM Hybrid System

From the estimated peak heat loss and total energy demand listed above (see “Estimated Space Heating and DHW requirements”) the below system(s) have been selected to suit your requirements.

aroTHERM 5kW Hybrid System

From the information you have supplied Vaillant have estimated that an aroTHERM 5kW hybrid with an ecoTEC 618 LPG will supply 100% of the heating demand. The aroTHERM 5kW will require a 230V~ single phase electrical supply.

Domestic Hot Water System

From the information you have supplied Vaillant have estimated the properties domestic hot water requirements would be met by our uniSTOR 200L unvented cylinder. The ecoTEC 618 will support the DHW reheating.

Additional Information

The DHW cylinder size has have been estimated, the requirements of the property need to be confirmed to ensure DHW volume is sufficient.

The emitters and pipe sizing must be designed for a heat pump system. Radiator sizing and underfloor heating spacing should be taken from the heat emitter guide sized to achieve the lowest possible flow temperature and highest star rating. Systems designed with lower flow temperatures will be more efficient. Mixed systems will only be efficient as the highest design temperatures. UFH system should be designed with zero temperature differential thermal mixers. Installation Information

Please refer to installation instructions for full information on installation requirements. Before purchase of the heat pump a full heat loss calculation in line with EN12831 should be carried out to ensure that the equipment is fit for the property. The plant room and entrance into the plant room must be measured to ensure all components required can be installed.

The heat pump must be raised off the ground >100mm to ensure the condensate when produced can be fully cleared from the unit. A drain or soakaway will need to be accessed near the installation area. For further guidance please consult the installation instructions.

Flexible hoses and anti vibration feet must be installed in accordance with MCS MIS 3005. The primary pipework must be suitably sized to ensure correct flow across the heat pump. The heat should be positioned as close to the property as possible to reduce pressure and energy loss. Any external pipework must be insulated with HT armatflex or similar.

Planning Information

Development is permitted only if the air source heat pump installation complies with the Microgeneration Certification Scheme planning standards or equivalent standards.

An AWHP will be passed under permitted developments if the installation area passes a noise assessment (MCS 020) and the requirements of the planning portal are met. Information on planning can be found at http://planningportal.gov.uk/permission/commonprojects/heatpumps

N.B 15kw ArOHERM Air to Water Heat Pump requires planning

Non Vaillant required equipment list

| Description | Quantity | |-----------------------------------------------------------------------------|----------| | Full bore isolation valve 28mm (min) | 2 | | Honeywell V4044c 3 port diverting valve 28mm (min) (if using a non Vaillant cylinder) | 1 | | Glycol/inhibitor (Fernox HP16c) | Variable | | Return heating filter (Magnaclean TF1 or equivalent) | 1 | | Expansion vessel kit (for both Glycol and heating circuits) | 1\* | | Heat pump return filter (Fully isolatable, appropriately sized Y strainer) | 1 |

- Two expansion vessels are required if heat exchanger modules are used.

Estimated Running Costs

| Description | Estimation of running costs | |------------------------------------|-----------------------------| | Cost space heating | £813.84 | | Cost of DHW from Heat Pump | £236.52 | | Cost of DHW from Immersion | £0.00 | | Cost CH pump(s) | £68.33 | | Total estimated combined running cost | £1,118.68 | | Electrical system performance | 8251 kWh |

20/11/2017

The report is constructed on the information supplied and does not constitute an offer binding on Vaillant. Vaillant has compiled the content of this report to the best of its knowledge. No expressed or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specification and prices are subject to change without prior notification. Product Details

Features

- Inverter compressor technology which modulates the heating output according to demand, reducing energy consumption
- High efficiency DC pump low electric consumption of the pump for better CoP and decrease energy consumption (ErP ready)
- Includes installer interface for appliance setting
- Weather compensating controls come as standard
- Robust casing with steel support structure no additional cage is required
- Ultra quiet operation – 60dBA sound power level
- 2 years full parts and labour guarantee giving piece of mind
- MCS Accredited for Government Incentives

Electrical Details

- Single Phase Inverter Compressor and auxiliary heater.
- This heat pump requires a single phase 230Vac 50Hz electrical supply.

Dimensions

- 5kW: H800 mm x W980 mm x D360 mm
- 8 & 11kW: H975 mm x W1103 mm x D463 mm
- 15kW: H1,363 mm x W906 mm x D326 mm

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AroTHERM

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Features

- System "Air Bag" can be used to give the heating an extra boost in extreme weather conditions
- Can be wired to give 2kW, 4kW, 6kW outputs or staged
- Easy and flexible installation
- Ensures comfort levels

Dimensions

- H500mm x W280mm x D250mm

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6kW Backup Heater

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Features

- Wall mounted and compact
- Adds system volume to meet flow requirements as well as support the system in de-icing
- Multiple tapings for flexible system design requirements - Possible to link two heat sources into one system
- Thermally layered for increased performance

Dimensions

- H720mm x W350mm x D350mm

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40L Buffer Cylinder

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Features

- Separates the heat pump glycol circuit from the heating circuit
- Reduce the amount of glycol required
- Central heating circulating pump
- Filling valves for the heat pump glycol circuit included
- Heat pump glycol circuit PRV

Dimensions

- H500mm x W360mm x D250mm

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Heat Exchanger Module

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The report is constructed on the information supplied and does not constitute an offer binding on Vaillant. Vaillant has compiled the content of this report to the best of its knowledge. No expressed or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specification and prices are subject to change without prior notification.